{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "However , when the amount of water fraction exceeds 70 % , a new fluorescence band appears at the same orange - red emission wavelength as that of the solid - state fluorescence ."}
{"Chemical": []}